{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WZCJDXQEPVXEL2XFDU5FJ33NM4","short_pith_number":"pith:WZCJDXQE","canonical_record":{"source":{"id":"1403.2529","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-03-11T10:30:52Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"8010b6ec4d7ceefb61aba3fec66edb2737492b6af3352abfa74ca4e8c5f984b8","abstract_canon_sha256":"1f1c951f7a113799f876b0307dad3210856016636edc54c2845206c68d07a32b"},"schema_version":"1.0"},"canonical_sha256":"b64491de047d6e45eae51d3a54ef6d67274c90ddc318340b252d7fce21e9fd97","source":{"kind":"arxiv","id":"1403.2529","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.2529","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"arxiv_version","alias_value":"1403.2529v1","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.2529","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"pith_short_12","alias_value":"WZCJDXQEPVXE","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WZCJDXQEPVXEL2XF","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WZCJDXQE","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WZCJDXQEPVXEL2XFDU5FJ33NM4","target":"record","payload":{"canonical_record":{"source":{"id":"1403.2529","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-03-11T10:30:52Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"8010b6ec4d7ceefb61aba3fec66edb2737492b6af3352abfa74ca4e8c5f984b8","abstract_canon_sha256":"1f1c951f7a113799f876b0307dad3210856016636edc54c2845206c68d07a32b"},"schema_version":"1.0"},"canonical_sha256":"b64491de047d6e45eae51d3a54ef6d67274c90ddc318340b252d7fce21e9fd97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:23.109327Z","signature_b64":"cvbQgnmbMto6oQUg2D4+t7IH4o6Wyj6D8mb3tcu23AgY+CY5LalyJyFcrEi7dWaR60uhYpA+t/HNqtxraCE6Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b64491de047d6e45eae51d3a54ef6d67274c90ddc318340b252d7fce21e9fd97","last_reissued_at":"2026-05-18T02:28:23.108790Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:23.108790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.2529","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:28:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hdnUHsehBGz9OZUpGhIw5DehvbnK+ge/HU9ivg4T8Wa9jq/Nk+GX2aogFXMz2FbtJNZkUT44dcBQdSPD3sY8DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:09:30.382928Z"},"content_sha256":"a776a371faeb37e1a642862e1411567ec4d8b4922a3b9af486de1ca0dadcbc5c","schema_version":"1.0","event_id":"sha256:a776a371faeb37e1a642862e1411567ec4d8b4922a3b9af486de1ca0dadcbc5c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WZCJDXQEPVXEL2XFDU5FJ33NM4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tuning order-by-disorder multiferroicity in CuO by doping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Bergman, A. Stroppa, D. Prabhakaran, J. Hellsvik, J. Lorenzana, L. Bergqvist, M. Balestieri, O. Eriksson, S. Picozzi, T. Kimura, T. Usui","submitted_at":"2014-03-11T10:30:52Z","abstract_excerpt":"The high Curie temperature multiferroic compound, CuO, has a quasidegenerate magnetic ground state that makes it prone to manipulation by the so called ``order-by-disorder'' mechanism. First principle computations supplemented with Monte Carlo simulations and experiments show that isovalent doping allows to stabilize the multiferroic phase in non-ferroelectric regions of the pristine material phase-diagram with experiments reaching a 250% widening of the ferroelectric temperature window with 5% of Zn doping. Our results allow to validate the importance of a quasidegenerate ground state on prom"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.2529","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:28:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F11xUJu/rBWE90GE/WIfpZOtuv2qcDmb4hAtI1kzo33zjYYnBSXgaZWimkU/8FWlKiUDxzgpmyqVvO8coCecCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:09:30.383274Z"},"content_sha256":"fec9c90ce67d89d2943d0f921f8dad104e75d99b974f371087b896dd1487da7f","schema_version":"1.0","event_id":"sha256:fec9c90ce67d89d2943d0f921f8dad104e75d99b974f371087b896dd1487da7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/bundle.json","state_url":"https://pith.science/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T19:09:30Z","links":{"resolver":"https://pith.science/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4","bundle":"https://pith.science/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/bundle.json","state":"https://pith.science/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WZCJDXQEPVXEL2XFDU5FJ33NM4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WZCJDXQEPVXEL2XFDU5FJ33NM4","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1f1c951f7a113799f876b0307dad3210856016636edc54c2845206c68d07a32b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-03-11T10:30:52Z","title_canon_sha256":"8010b6ec4d7ceefb61aba3fec66edb2737492b6af3352abfa74ca4e8c5f984b8"},"schema_version":"1.0","source":{"id":"1403.2529","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.2529","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"arxiv_version","alias_value":"1403.2529v1","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.2529","created_at":"2026-05-18T02:28:23Z"},{"alias_kind":"pith_short_12","alias_value":"WZCJDXQEPVXE","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WZCJDXQEPVXEL2XF","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WZCJDXQE","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:fec9c90ce67d89d2943d0f921f8dad104e75d99b974f371087b896dd1487da7f","target":"graph","created_at":"2026-05-18T02:28:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The high Curie temperature multiferroic compound, CuO, has a quasidegenerate magnetic ground state that makes it prone to manipulation by the so called ``order-by-disorder'' mechanism. First principle computations supplemented with Monte Carlo simulations and experiments show that isovalent doping allows to stabilize the multiferroic phase in non-ferroelectric regions of the pristine material phase-diagram with experiments reaching a 250% widening of the ferroelectric temperature window with 5% of Zn doping. Our results allow to validate the importance of a quasidegenerate ground state on prom","authors_text":"A. Bergman, A. Stroppa, D. Prabhakaran, J. Hellsvik, J. Lorenzana, L. Bergqvist, M. Balestieri, O. Eriksson, S. Picozzi, T. Kimura, T. Usui","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-03-11T10:30:52Z","title":"Tuning order-by-disorder multiferroicity in CuO by doping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.2529","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a776a371faeb37e1a642862e1411567ec4d8b4922a3b9af486de1ca0dadcbc5c","target":"record","created_at":"2026-05-18T02:28:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1f1c951f7a113799f876b0307dad3210856016636edc54c2845206c68d07a32b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-03-11T10:30:52Z","title_canon_sha256":"8010b6ec4d7ceefb61aba3fec66edb2737492b6af3352abfa74ca4e8c5f984b8"},"schema_version":"1.0","source":{"id":"1403.2529","kind":"arxiv","version":1}},"canonical_sha256":"b64491de047d6e45eae51d3a54ef6d67274c90ddc318340b252d7fce21e9fd97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b64491de047d6e45eae51d3a54ef6d67274c90ddc318340b252d7fce21e9fd97","first_computed_at":"2026-05-18T02:28:23.108790Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:23.108790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cvbQgnmbMto6oQUg2D4+t7IH4o6Wyj6D8mb3tcu23AgY+CY5LalyJyFcrEi7dWaR60uhYpA+t/HNqtxraCE6Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:23.109327Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.2529","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a776a371faeb37e1a642862e1411567ec4d8b4922a3b9af486de1ca0dadcbc5c","sha256:fec9c90ce67d89d2943d0f921f8dad104e75d99b974f371087b896dd1487da7f"],"state_sha256":"8aa94c87be0065c2ba5c487a8dddd7006650da257839d82c250f64a7efedcf70"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NMXzp4386V1FewVcVeyqrSJGFx+3rqfEczz9H7B4DSu+PzLwJJ0VbOKjr3a6I1IFW3nyRXkVJj1rMq+p+vj5Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:09:30.385633Z","bundle_sha256":"1af799b479ec9ad83176f647850676e92c22d79b9575690649379efb74333a21"}}